Adding sync block macro

oxydsp-flowgraph/src/block.rs

@@ -1,4 +1,4 @@
-use crate::edge::BlockIOIndex;
+use crate::edge::{AnonymousStreamConsumer, AnonymousStreamProducer, BlockIOIndex};
 
 pub enum BlockResult
 {
@@ -16,8 +16,18 @@ pub trait BlockIO
     fn set_index(&self, block_index: usize);
 
     // Number of input/output ports
-    fn input_count(&self);
-    fn output_count(&self);
+    fn input_count(&self) -> usize;
+    fn output_count(&self) -> usize;
+
+    // Stream managment
+    fn set_anonymous_out_stream(&mut self, output_index: usize, producer: AnonymousStreamProducer);
+    fn set_anonymous_in_stream(&mut self, input_index: usize, consumer: AnonymousStreamConsumer);
+
+    fn create_anonymous_stream_for(
+        &mut self,
+        output_index: usize,
+        capacity: usize,
+    ) -> (AnonymousStreamProducer, AnonymousStreamConsumer);
 }
 
 pub trait Block
@@ -25,4 +35,12 @@ pub trait Block
     fn work(&mut self) -> BlockResult;
 }
 
+pub trait SyncBlock
+{
+    type Input;
+    type Output;
+
+    fn sync_work(&mut self, input: Self::Input) -> Self::Output;
+}
+
 pub trait GraphableBlock: Block + BlockIO {}